Placid

Definitions: (1) possessing a gentle, quiet spirit; showing an undisturbed or equable demeanor; mild mannered; (2) peace of mind; serene; unruffled; calm; tranquil

Derivation: Latin, “to please”

Quotes:
• The more simply we look at ticklish questions, the more placid will be our lives and relationships. — Anton Pavlovich Chekhov (1860-1904) Russian playwright
• Like water which can clearly mirror the sky and the trees only so long as its surface is undisturbed, the mind can only reflect the true image of the Self when it is tranquil and wholly relaxed. — Eugenie Peterson [aka: Indra Devi] (1899–2002) Russian actress & yoga instructor